I used Bilstein 5100 shocks and bought the leafs from these guys.

General Spring
LEAF SPRINGS & SUSPENSION AUTHORITY SINCE 1965!
1-888-829-0619

They will want to know your rear end type and I am almost positive all 2001's came with Chrysler Axles.
I probably only have 500 or less miles on them and I don't think they have settled much if any. I am putting 3" front coils on tomorrow to level it out better and I have 3" over Bielsteins on it. And currently have a 1 3/4" spacer with new stock coils. If it ends up to high I will put a set of shackles on. I can give you a great deal on the stock new coils and spacers to raise your front some. No new shock is needed for that spacer. I also ordered new U Bolts and nuts and bolts for the leafs. Start putting BP Blaster on the U BOLTS and spring bolts every day if you can till you do it.
How many miles on yours? Rust?

Hey, sorry to bug you. I saw a post about you doing your rear leafs. I just picked up a 2001 XJ Sport 2wd and the suspension is awful. Leaf springs are almost arched the wrong way. What leafs and shocks did you end up going with and did the rear settle out or is it still up higher than the front? Thanks.